Amylase, lactase, and pepsin serve as catalysts in metabolism.
I hope this helps!
The correct answer is (a)
Chlorophyll is contained within the thylakoid membrane. Stroma is the space between the thylakoid membrane and the chloroplast membrane. The outer most part is the double membrane in which the whole chloroplast is housed. It is like the walls of the house.
Chloroplasts are surrounded by this double membrane and contain a third inner membrane which is the thylakoid membrane. This membrane forms long folds within the organelle. In electron micrographs, thylakoid membranes appear like stacks of coins.
1. D
3. D
4.D
5.D
I don't know what you're trying to say about number 2. As for the rest the answers are somehow D. Looks sketchy, but to the extent of my knowledge those are the answers.
for rates
Higher child mortality causes higher fertility rates. Rapid population growth has been a temporary phenomenon in countries around the world. Rapid population growth starts when the health of the population improves and the mortality rate in a population decreases while the birth rate stays as high as before.
for population
Population growth is still fast: Every year 140 million are born and 58 million die – the difference is the number of people that we add to the world population in a year: 82 million. ... In red you see the annual population growth rate (that is, the percentage change in population per year) of the global population.
source - ourworldindata.org
Your answer is C. HCO3 levels are referencing Hydrogen as it relates to the pH scale. More Alkayline? Or more Acidic?